Impact of front-end non-idealities on bit error rate performance of WLAN-OFDM transceivers

@inproceedings{citeulike:2959198, abstract = {New OFDM-based WLAN standards target wireless communications in the 5 GHz band for consumer multimedia applications. Given the high data rates with required low bit error rates, and given the nature of the OFDM signal, a conservative analysis of the front-end requirements lead to severe, over dimensioned specifications. Such a design would never meet this market, by necessity low-cost and low-power. To extract more optimal front-end specifications, we assess the BER performance of the complete WLAN-OFDM link. As a result, we first show that the transmitted symbols' word-length can be restricted to 8-bit and the normalized crest factor digitally limited at baseband to 4. Then we show that the power amplifier can operate with only 5.4 dB back-off between the average input power and the input-referred P_ldB. Finally, we quantify in terms of implementation loss the influence of the I/Q imbalance and of the frequency synthesizer phase noise}, author = {Come, B. and Ness, R. and Donnay, S. and Van der Perre, L. and Eberle, W. and Wambacq, P. and Engels, M. and Bolsens, I. }, booktitle = {Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE}, citeulike-article-id = {2959198}, doi = {10.1109/RAWCON.2000.881863}, journal = {Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE}, keywords = {amplifier, nonlinear, ofdm}, pages = {91--94}, posted-at = {2008-07-03 14:20:51}, priority = {2}, title = {Impact of front-end non-idealities on bit error rate performance of WLAN-OFDM transceivers}, url = {http://dx.doi.org/10.1109/RAWCON.2000.881863}, year = {2000} }

TY - CONF ID - citeulike:2959198 L3 - citeulike-article-id:2959198 TI - Impact of front-end non-idealities on bit error rate performance of WLAN-OFDM transceivers T2 - Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE JF - Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE SP - 91 EP - 94 N2 - New OFDM-based WLAN standards target wireless communications in the 5 GHz band for consumer multimedia applications. Given the high data rates with required low bit error rates, and given the nature of the OFDM signal, a conservative analysis of the front-end requirements lead to severe, over dimensioned specifications. Such a design would never meet this market, by necessity low-cost and low-power. To extract more optimal front-end specifications, we assess the BER performance of the complete WLAN-OFDM link. As a result, we first show that the transmitted symbols' word-length can be restricted to 8-bit and the normalized crest factor digitally limited at baseband to 4. Then we show that the power amplifier can operate with only 5.4 dB back-off between the average input power and the input-referred P_ldB. Finally, we quantify in terms of implementation loss the influence of the I/Q imbalance and of the frequency synthesizer phase noise KW - amplifier KW - nonlinear KW - ofdm AU - Come, B AU - Ness, R AU - Donnay, S AU - Van der Perre, L AU - Eberle, W AU - Wambacq, P AU - Engels, M AU - Bolsens, I PY - 2000/// UR - http://dx.doi.org/10.1109/RAWCON.2000.881863 ER -